Portable device capable of standing and hanging by handle assembly thereof

ABSTRACT

A portable device capable of standing and hanging by a handle assembly thereof. The portable device includes a main body and a handle assembly. The handle assembly is connected to the main body, allowing the main body to stand on a surface when the handle assembly is spread to a limit position.

BACKGROUND

The invention relates to a device provided with a handle assembly which allows the device to be carried, hung on a wall or stand on a surface.

Many kinds of devices (e.g. liquid crystal devices) are provided with bases to stand on a surface (e.g. table surface). For transportation, the users generally hold the devices in their arms. Furthermore, some of the devices can be hung on walls by additional structures.

SUMMARY

A portable device capable of standing and hanging by a handle assembly thereof is provided. An exemplary embodiment of a portable device includes a main body and a handle assembly. The handle assembly is connected to the main body, allowing the main body to stand on a surface when the handle assembly is spread to a limit position, and be carried or hung on a wall when collapsed.

Furthermore, the handle assembly comprises a support connected to the main body, an extending portion contacting the surface, and a shaft structure connecting the support and the extending portion so that the extending portion can be rotated around the support.

Furthermore, the shaft structure comprises a supporting stand fixed to the support, and a rotary shaft supported by the supporting stand and fixed to the extending portion, whereby the rotary shaft stops the handle assembly in the limit position by abutting the supporting stand.

Furthermore, the extending portion comprises a positioning protrusion abutting the support when the handle assembly is spread to the limit position.

Note that the portable device may be a liquid crystal display.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention can be more fully understood by reading the subsequent detailed description and example with references made to the accompanying drawings, wherein:

FIG. 1A depicts a device provided with a handle assembly in accordance with an embodiment of the invention, wherein the handle assembly is spread;

FIG. 1B depicts the device of FIG. 1A, wherein the handle assembly is collapsed;

FIG. 2 is an exploded view of the handle assembly of FIG. 1A;

FIG. 3 is a local view of the handle assembly of FIG. 2, wherein the shaft structure is separated from the handle assembly;

FIG. 4 is a perspective exploded view of the shaft structure of FIG. 3;

FIG. 5A depicts the shaft structure of FIG. 3 when the handle assembly is spread to a limit position; and

FIG. 5B depicts the shaft structure of FIG. 3 when the handle assembly is collapsed.

DETAILED DESCRIPTION

Referring to FIGS. 1A and 1B, a device (e.g. liquid crystal device) 10 comprises a main body 12 and a handle assembly 11. The handle assembly 11 can be spread or collapsed by rotation in directions E, E′. As shown in FIG. 1A, the spread handle assembly 11 allows the main body 12 to stand on a surface (e.g. a table surface) for user's view or use. As shown in FIG. 1B, the collapsed handle assembly 11 allows the main body 12 to be carried or hung on a wall or an apparatus.

Referring to FIGS. 2 and 3, the handle assembly 11 comprises a support 13, a pair of extending portions 14 and a pair of shaft structures 15, which are described in the following:

Each extending portion 14 extends away from one of the shaft structures 15, turns and then approaches the other, providing a large bottom area for stabilizing the main body 12 on the surface. In the embodiment, the pair of extending portions 14 curve and are symmetrical. Furthermore, each extending portion 14 has connecting sleeves 144 at both ends. Each connecting sleeve 144 has a closed end and an open end on which a positioning protrusion 146 is fixed.

The support 13 is connected to the main body 12 and oriented lengthwise with the shaft structures 15 disposed at both ends thereof. On the support 13 are provided a plurality of holes 133.

The shaft structures 15 allow the extending portions 14 to rotate around the support 13 whereby the handle assembly 11 is spread or collapsed. Structurally, an end of the shaft structure 15 is fixed to the support 13 via screws 16 (see FIG. 2) while the other end of the shaft structure 15 is fixed to the extending portions 14 via screws 148 (FIG. 3). Detailed descriptions of the connection therebetween will be given after the introduction of the shaft structure 15 beginning at the next paragraph.

Referring to FIG. 4, the shaft structure 15 comprises a pair of parallel rotary shafts 151, a supporting stand 153, a connecting element 154, a pair of nuts 155 and a plurality of washers 157, 157′, which are described in the following:

Each rotary shaft 151 comprises a positioning portion 1511, an expanding portion 1512, a supporting portion 1513, a threaded portion 1514 and a shank 1515 connected in sequence, wherein the positioning portion 1511 is substantially semicylindrical, and the shank 1515 has a plurality of holes 1516 therein.

The supporting stand 153 comprises a planar stand body 1531 and a platform 1532. Openings 1533 are provided on the stand body 1531. Holes 1535 are provided on the platform 1532.

The connecting element 154 comprises a planar element body 1541 substantially parallel to the stand body 1531, and a planar connecting portion 1542 substantially parallel to the platform 1532. The connecting portion 1542 and the platform 1532 are positioned substantially the same height. Openings 1543 and holes 1544 are provided on the element body 1541 and the connecting portion 1542, respectively.

To assemble the shaft structure 15, the connecting element 154 and the supporting stand 153 are collected, with the element body 1541 contacting the stand body 1531 and the opening 1543 aligning with the opening 1533. Then, the rotary shaft 151 is led through the washer 157, the openings 1533, 1543, the washer 157′ and the nut 155. The result is shown in FIG. 5A, wherein the nut 155 is screwed on the threaded portion 1514, and the washer 157′, the element body 1541, the stand body 1531 and the washer 157 are supported by the supporting portion 1513 and held between the nut 155 and the expanding portion 1512.

If forces are exerted on the shanks 1515 in directions E, E′, the rotary shafts 151 will then change their positions as shown in FIG. 5B. It is noted that the supporting stand 153 and the connecting element 154 remain stationary during the rotation of the rotary shafts 151.

The connection of the shaft structure 15 to other elements is now described in detail. The shaft structure 15, as mentioned above, has an end fixed to the support 13 (FIG. 2) and the other end fixed to the extending portions 14 (FIG. 3). Specifically, the shaft structure 15 and the support 13 are fastened together by threading the screws 16 through the holes 133 into the holes 1535, 1544. Furthermore, the shaft structure 15 and the extending portions 14 are fastened together by threading screws 148, through the holes (not shown) on the bottoms of the connecting sleeves 144, into the holes 1516 of the shanks 1515, after the shanks 1515 of the shaft structure 15 are inserted into the connecting sleeves 144 of the extending portions 14.

When the handle assembly 11 is spread to support the main body 12 on a table, the weight of the main body 12 is transmitted through the support 13 and the shaft structures 15 to the extending portions 14. The reaction forces of the extending portions 14 to the weight, indicated by reference symbols T, T′ in FIG. 5A, act on the shanks 1515 of the shaft structures 15 and force the rotary shafts 151 to rotate until the positioning portions 1511 abut the supporting stand 153. That is, the supporting stand 153 stops the rotary shafts 151 from further rotating in directions of forces T, T′, where the handle assembly 11 is exactly in the limit position as shown in FIG. 1A. Also, the bottom of the support 13 is abutted by the positioning protrusions 146 (shown in FIG. 3). It is noted that the reaction forces T, T′ are resisted primarily by the supporting stand 153 and secondarily by the bottom of the support 13.

To collapse the handle assembly 11, the user lifts the device 10 from the table and rotates the extending portions 14 in directions E, E′. The rotary shafts 151 follow the rotation of the extending portions 14 to release the supporting stand 153 from the positioning portions 1511 as shown in FIG. 5B wherein the positioning portions 1511 are turned to the positions below the supporting stand 153.

In the above descriptions the handle assembly 11 has two extending portions 14 for stabilizing the device 10 on a table. It is understood, however, that reduction of the number of the extending portions to one is feasible if the center of gravity of the device 10 is properly designed. Furthermore, the length of the extending portion 14 can be shortened, with one end fixed to the shaft structure 15 and the other end free. Then, the shaft structure 15 of the handle assembly 11 has only one rotary shaft 151.

While the invention has been described by way of example and in terms of preferred embodiment, it is to be understood that the invention is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements (as would be apparent to those skilled in the art). Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements. 

1. A portable device comprising: a main body; and a handle assembly connected to the main body, allowing the main body to stand on a surface when the handle assembly is spread to a limit position.
 2. The portable device as claimed in claim 1, wherein the handle assembly comprises a support connected to the main body, an extending portion contacting the surface, and a shaft structure connecting the support and the extending portion so that the extending portion can be rotated around the support.
 3. The portable device as claimed in claim 2, wherein the extending portion extends away from the shaft structure, turns and then approaches the shaft structure.
 4. The portable device as claimed in claim 2, wherein the extending portion curves.
 5. The portable device as claimed in claim 2, wherein the handle assembly comprises a pair of extending portions connected to the support via the shaft structure.
 6. The portable device as claimed in claim 5, wherein the pair of extending portions is symmetrical.
 7. The portable device as claimed in claim 5, wherein the shaft structure comprises a pair of rotary shafts arranged in parallel and respectively connected to the pair of extending portions.
 8. The portable device as claimed in claim 5, wherein the support is oriented lengthwise, and the handle assembly comprises two shaft structures disposed at both ends of the support, respectively.
 9. The portable device as claimed in claim 2, wherein the shaft structure comprises a supporting stand fixed to the support, and a rotary shaft supported by the supporting stand and fixed to the extending portion, whereby the rotary shaft stops the handle assembly in the limit position by abutting the supporting stand.
 10. The portable device as claimed in claim 9, wherein the rotary shaft comprises a positioning portion by which the rotary shaft abuts the supporting stand.
 11. The portable device as claimed in claim 10, wherein the positioning portion is substantially semicylindrical.
 12. The portable device as claimed in claim 2, wherein the extending portion comprises a positioning protrusion abutting the support when the handle assembly is spread to the limit position.
 13. The portable device as claimed in claim 12, wherein the extending portion further comprises a connecting sleeve firmly connected to the shaft structure, and the connecting sleeve has an open end on which the positioning protrusion is fixed.
 14. The portable device as claimed in claim 1, wherein the portable device is a liquid crystal display.
 15. A handle assembly for supporting a main body, comprising: a support connected to the main body; an extending portion; and a shaft structure connecting the support and the extending portion, allowing rotation of the extending portion to a limit position, wherein the extending portion contacts a surface when the main body stands on the surface via the handle assembly.
 16. The handle assembly as claimed in claim 15, wherein the extending portion extends away from the shaft structure, turns and then approaches the shaft structure.
 17. The handle assembly as claimed in claim 15, wherein the extending portion curves.
 18. The handle assembly as claimed in claim 15, wherein the handle assembly comprises a pair of extending portions connected to the support via the shaft structure.
 19. The handle assembly as claimed in claim 18, wherein the pair of extending portions is symmetrical.
 20. The handle assembly as claimed in claim 18, wherein the shaft structure comprises a pair of rotary shafts arranged in parallel and respectively connected to the pair of extending portions.
 21. The handle assembly as claimed in claim 18, wherein the support is oriented lengthwise, and the handle assembly comprises two shaft structures disposed at both ends of the support, respectively.
 22. The handle assembly as claimed in claim 15, wherein the shaft structure comprises a supporting stand fixed to the support, and a rotary shaft supported by the supporting stand and fixed to the extending portion, whereby the rotary shaft stops the extending portion in the limit position by abutting the supporting stand.
 23. The handle assembly as claimed in claim 22, wherein the rotary shaft comprises a positioning portion by which the rotary shaft abuts the supporting stand.
 24. The handle assembly as claimed in claim 23, wherein the positioning portion is substantially semicylindrical.
 25. The handle assembly as claimed in claim 15, wherein the extending portion comprises a positioning protrusion abutting the support when the extending portion is rotated to the limit position.
 26. The handle assembly as claimed in claim 25, wherein the extending portion further comprises a connecting sleeve firmly connected to the shaft structure, and the connecting sleeve has an open end on which the positioning protrusion is fixed.
 27. A shaft structure comprising: a supporting stand; and a rotary shaft supported by the supporting stand, abutting the supporting stand when the shaft structure is rotated to a limit position.
 28. The shaft structure as claimed in claim 27, wherein the rotary shaft comprises a positioning portion by which the rotary shaft abuts the supporting stand.
 29. The shaft structure as claimed in claim 28, wherein the positioning portion is substantially semicylindrical.
 30. The shaft structure as claimed in claim 27, wherein the supporting stand comprises a planar stand body and a platform connected to the stand body.
 31. The shaft structure as claimed in claim 30, further comprising a connecting element contacting the supporting stand.
 32. The shaft structure as claimed in claim 31, wherein the connecting element comprises a planar element body substantially parallel to the stand body, and a planar connecting portion substantially parallel to the platform.
 33. The shaft structure as claimed in claim 32, wherein the connecting portion and the platform are positioned substantially at the same height.
 34. The shaft structure as claimed in claim 27, wherein the rotary shaft comprises a positioning portion, an expanding portion, a supporting portion and a threaded portion connected in series, the shaft structure further comprises a nut screwed onto the threaded portion of the rotary shaft, the supporting stand is supported by the supporting portion of the rotary shaft and held between the nut and the expanding portion, and the positioning portion abuts the supporting stand when the shaft structure is rotated to the limit position.
 35. The shaft structure as claimed in claim 34, further comprising a connecting element supported by the supporting portion and held between the nut and the expanding portion. 